Plastic cooling liquid water pipe and preparation method thereof

A cooling liquid and water pipe technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of complex production process routes, non-recyclable materials, low water vapor barrier rate, etc., to reduce production and operation costs, save flow The effect of simplifying the process, reducing equipment investment and floor space

Inactive Publication Date: 2020-04-17
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology mainly uses EPDM (Ethylene Propylene Diene Monomer, EPDM) / reinforcement layer / EPDM rubber coolant pipeline, the corresponding material of the product is not recyclable, the water vapor barrier rate is low, the weight is heavy, and the cost is relatively high. High, its applicable temperature range is wide, it is the best choice for the coolant pipeline near the engine of the traditional fuel vehicle, but for the reduction of the medium temperature, the reduction of the ambient temperature and the pressure in the overall working condition of the new energy vehicle The reduction of the traditional coolant pipe structure design is not the best material structure design
In addition, the traditional rubber coolant pipeline needs to go through EPDM rubber mixing and extruding with a special rubber extruder during the production process. After the extrusion is completed, a steam vulcanization tank is used to shape the special-shaped product, and the production process is complicated.

Method used

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  • Plastic cooling liquid water pipe and preparation method thereof
  • Plastic cooling liquid water pipe and preparation method thereof
  • Plastic cooling liquid water pipe and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] In this embodiment one, the first polyolefin pipe is a PP (Polypropylene, polypropylene) pipe, and the second polyolefin pipe is a TPV (Thermoplastic Vulcanizate, thermoplastic vulcanizate) pipe. To the outside are: PP layer, TPV layer. PP material has good coolant resistance and temperature resistance, TPV material not only has the stiffness and excellent processing performance of plastic, but also has the flexibility of rubber material.

[0038] During processing, PP materials and TPV materials can be added to a multi-compound extruder for extrusion, and a certain extrusion temperature can be controlled to form a double-layer tubular structure.

Embodiment 2

[0040] In the second embodiment, the first polyolefin pipe is a HDPE (High Density Polyethylene, high-density polyethylene) pipe, the second polyolefin pipe is a TPV pipe, and there is an adhesive between the first polyolefin pipe and the second polyolefin pipe. Adhesive layer group, the plastic cooling liquid water pipe in the present embodiment 2 is in order from inside to outside: HDPE layer, adhesive layer, TPV layer. HDPE material has good heat resistance and cold resistance, and also has high rigidity and toughness.

[0041] The adhesive layer group can strengthen the connection strength between HDPE and TPV, and in this embodiment, the adhesive layer group is a layer of plastic material for bonding.

[0042] During processing, HDPE material, binder and TPV material can be added to a multi-compound extruder for extrusion, and a certain extrusion temperature can be controlled to form a multi-layer tubular structure.

Embodiment 3

[0044]In the third embodiment, the first polyolefin pipe is an HDPE pipe, the second polyolefin pipe is a TPV pipe, and there is an adhesive layer group between the first polyolefin pipe and the second polyolefin pipe. The adhesive layer group includes a first adhesive layer and a second adhesive layer, and a barrier layer is also arranged between the first adhesive layer and the second adhesive layer. Adding a barrier layer between the first adhesive layer and the second adhesive layer can make the plastic coolant water pipe have better tensile strength and anti-aging properties.

[0045] Wherein, the barrier layer may be EVOH (Ethylene vinyl alcohol copolymer, ethylene / vinyl alcohol copolymer) tube, PA6 (nylon 6) tube or other barrier material layers. The plastic coolant water pipe in the third embodiment is sequentially arranged from inside to outside: HDPE layer, adhesive layer, EVOH / PA6 layer, adhesive layer, and TPV layer.

[0046] During processing, the HDPE material, ...

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Abstract

The invention provides a plastic cooling liquid water pipe and a preparation method thereof, relating to the technical field of cooling pipes. The plastic cooling liquid water pipe comprises a first polyolefin pipe and a second polyolefin pipe, wherein the first polyolefin pipe is coated with the second polyolefin pipe, and when the first polyolefin pipe and the second polyolefin pipe are made ofthe same material, a reinforcing layer is further arranged between the first polyolefin pipe and the second polyolefin pipe. The plastic cooling liquid water pipe provided by the invention can be recycled, is light in weight, low in cost and low in permeability, and more conforms to the development trend of a safe, environment-friendly and weight-reducing whole vehicle.

Description

technical field [0001] The invention relates to the technical field of cooling pipes, in particular to a plastic cooling liquid water pipe and a preparation method thereof. Background technique [0002] With the development of new energy vehicles in recent years, the pipeline of the coolant system inside the vehicle has also undergone great changes. [0003] Recyclable materials, lightweight, hydrolysis resistance, and low volatile permeation will inevitably become the development trend of future coolant pipelines. There are three major cooling panels in the vehicle, which are the motor system or engine system cooling pipeline in the front cabin, the chassis coolant transmission pipeline and the battery cooling pipeline. The chassis coolant transmission pipeline and battery cooling pipeline are now made of plastic pipelines as the main material structure, which can meet the requirements of light weight, low volatile permeation and unique space layout. The choice of materia...

Claims

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Application Information

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IPC IPC(8): F16L9/12B29D23/18
CPCF16L9/121B29D23/18
Inventor 张洪起王娟薛俊芳
Owner TIANJIN PENGYI GRP CO LTD
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